VAC Phono in Avatar Super

Hello Maineiac,
You are not alone! I too own an Avatar Super and I have been working on clearing the problem with mine.
I have changed tubes with little or no success.
I was told it was my Grado wood cartridge, that it had too much gain @ 5 mv, so bought a new Clearaudio Virtuoso Wood. It was a little better but still not even close to acceptable.
I rewired my tone arm with the Incognito kit. The problem worsened. That was when I discovered that the hum changed depending where I grounded the arm to the Avatar chassis.
Now feeling less than intelligent I call VAC and talk to them about the hum in a nutshell they told me to ground it wherever it works. I have mine grounded to the ground on the right channel RCA. VAC's own external MC set-up grounds through this contact. This worked for me, although I find it to be a little Mickey Mouse, it works and sounds fabulous! Good Luck!

I don't think it is ground hum I am hearing, it is background noise from having the volume up to compensate for the low output of the cartridge (2.5). I have mine grounded to the ground screw next to the phone input. It would be nice to have just a little more gain I think. I am thinking of messing with some MM carts as suggested above just to see what happens. I would love to know how the Vac's phono stage stacks up against some of the well known brands out there.

I would love to know how the Vac's phono stage stacks up against some of the well known brands out there.

I have demoed the VAC Renaissance (full-function preamp) in my system. I don't know how close the Avatar comes to that, but the Renaissance does include internal stepups on the MC inputs, so their topologies seem similar. The Renaissance is higher up the food chain of course, so take it FWIW.

In my system the Renaissance easily bested the Aesthetix Rhea/Calypso and its line stage easily bested a Lamm line stage. It was, in fact, the second best preamp I've heard. My Nick Doshi Alaap had slightly better frequency extension at both ends and was slightly clearer on digital sources, but the differences were not large. If I didn't have one of Nick's units the Renaissance would be my choice from all the commercial preamps I've heard.

Thanks for your input Doug. Mine sounds good but I don't have anything to compare it to. According to the VAC web-site, the Vac Avatar Super has a triode MM phono stage derived from the VAC Signature Preamplifier and Renaissance grade parts throughout.

Maineiac, if you want to set up an A/B experiment let me know. I don't think we're that far apart. I can promise good times and good tunes!

Dan